Welcome Steve!
I just started using the Aptasia X product. I have one particular aptasia that just won't die. I have kalk'd it numerous times and it seems to just tuck away, re-group and show up later in the same spot. I figure that this guy will tell me if the product is good or not. It has been about 5 days and no sign of him. I'll let you know what happens.
I am a big fan of your phosphate, nitrate, nitrite, ammonia, and copper test kits. The calcium and mag kits are a little difficult because the applicator tip doesn't stay on the 1ml syringe very well. Have you found any problems that may need slight adjusting with any of your test kits?
Also, what is in the "Coralgro" product?
Thanks for reaching out to Colorado!